摘要
针对深埋矿井全煤巷道开挖后围岩松散破碎、变形大且难以稳定的特点,运用FLAC3D数值模拟软件对巷道不同煤层厚度下的围岩变形破坏规律进行了研究。结合小庄煤矿202工作面回采地质条件,提出以“锚杆一次柔性支护,高强度锚索二次加强支护”为原则的支护方案。由巷道变形监测数据可知,围岩变形量大幅降低,支护体系与围岩耦合良好。
Puts forward a supporting scheme based on the principle of primary flexible support of bolt and secondary reinforcement of high strength anchor cable.Monitoring data of roadway deformation shows that the deformation of surrounding rock is greatly reduced,and the connection and cementation between supporting system and surrounding rock is good.
作者
吴玉意
黄剑斌
WU Yuyi;HUANG Jianbin
出处
《山西焦煤科技》
2020年第4期35-37,49,共4页
Shanxi Coking Coal Science & Technology
关键词
全煤巷道
围岩变形
联合支护
现场监测
Full coal roadway
Surrounding rock deformation
Combined support
On-site monitoring